Eugene PolistukChairman and CEO

NO. 1: Celestica

Celestica (CLS

) was the hottest of the hot. Sales of the contract manufacturer ballooned 84%, to $9.8 billion, as companies sent huge manufacturing jobs its way. And thanks to superb operations, profits grew 147%, to $305 million. Now, Polistuk is promising to hit $20 billion in sales by 2003--downturn or no.

Louis V. Gerstner Jr.CEO

NO. 6: IBM

Overlooked during the dot-com craze, Big Blue is back and stronger than ever. IBM's (IBM

) gargantuan size and profits have pushed it to the top tier of the Info Tech 100 list, but generating strong growth is still its challenge.

Scott KriensChairman, President, and CEO

NO. 56: Juniper Networks

Juniper (JNPR

) is the picture of efficiency. The maker of networking gear outsources all of its manufacturing and uses the Internet to stay in touch with suppliers and customers. That's why it has gross margins of 65%, compared with an industry average of 46%.